Home / 815,997,176.31-1,224,235,909.44-263,289,236.07

Finding the Fourth Proportional to 815,997,176.31, 1,224,235,909.44 and 263,289,236.07

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Solution

The fourth proportional to 815,997,176.31, 1,224,235,909.44 and 263,289,236.07 is: 395,011,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,997,176.31 : 1,224,235,909.44 = 263,289,236.07 : x
  2. Step 2: Convert to fraction form
    815,997,176.31/1,224,235,909.44 = 263,289,236.07/x
  3. Step 3: Cross multiply
    815,997,176.31x = 1,224,235,909.44 × 263,289,236.07
  4. Step 4: Simplify right side
    815,997,176.31x = 322,328,137,365,919,296
  5. Step 5: Solve for x
    x = 322,328,137,365,919,296/815,997,176.31
  6. Step 6: Final answer
    x = 395,011,339.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.